/*
 * Copyright 2020-2030 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gitee.minimalismstyle.fresh.common.core.conversion

import com.gitee.minimalismstyle.fresh.common.core.exception.MessageException
import java.util.*
import java.text.SimpleDateFormat

/**
 * String转Date
 * @author maoxiaodong
 */
class StringToDateTypeConversion: TypeConversion<String, Date>{

    override fun convert(obj: String?, pattern: String?): Date? {
        if (obj.isNullOrBlank()) {
            return null
        }
        var pn = pattern
        if (pn.isNullOrBlank()) {
            pn = when (obj.length) {
                10 -> "yyyy-MM-dd"
                19 -> "yyyy-MM-dd HH:mm:ss"
                else -> throw MessageException(message = "日期格式不合法")
            }

        }
        val format = SimpleDateFormat(pn)
        return format.parse(obj)
    }
}